Voltammetric Determination of Ferulic Acid Using Polypyrrole-Multiwalled Carbon Nanotubes Modified Electrode with Sample ApplicationReportar como inadecuado


Voltammetric Determination of Ferulic Acid Using Polypyrrole-Multiwalled Carbon Nanotubes Modified Electrode with Sample Application


Voltammetric Determination of Ferulic Acid Using Polypyrrole-Multiwalled Carbon Nanotubes Modified Electrode with Sample Application - Descarga este documento en PDF. Documentación en PDF para descargar gratis. Disponible también para leer online.

Unit of Electrochemistry Applications UEA, Chemistry Department, Faculty of Science, Sohag University, Sohag 82524, Egypt





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Academic Editor: Mo Song

Abstract A polypyrrole-multiwalled carbon nanotubes modified glassy carbon electrode-based sensor was devised for determination of ferulic acid FA. The fabricated sensor was prepared electrochemically using cyclic voltammetry CV and characterized using CV and scanning electron microscope SEM. The electrode shows an excellent electrochemical catalytic activity towards FA oxidation. Under optimal conditions, the anodic peak current correlates linearly to the FA concentration throughout the range of 3.32 × 10−6 to 2.59 × 10−5 M with a detection limit of 1.17 × 10−6 M S-N = 3. The prepared sensor is highly selective towards ferulic acid without the interference of ascorbic acid. The sensor applicability was tested for total content determination of FA in a commercial popcorn sample and showed a robust functionality. View Full-Text

Keywords: voltammetry; polypyrrole-multiwalled carbon nanotubes; ferulic acid; modified electrode voltammetry; polypyrrole-multiwalled carbon nanotubes; ferulic acid; modified electrode





Autor: Refat Abdel-Hamid and Emad F. Newair *

Fuente: http://mdpi.com/



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